CN113910695A - Light flexible assembly, installation method thereof and photovoltaic building - Google Patents

Light flexible assembly, installation method thereof and photovoltaic building Download PDF

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Publication number
CN113910695A
CN113910695A CN202010648708.3A CN202010648708A CN113910695A CN 113910695 A CN113910695 A CN 113910695A CN 202010648708 A CN202010648708 A CN 202010648708A CN 113910695 A CN113910695 A CN 113910695A
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layer
light
flexible
composite material
fluorine
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CN202010648708.3A
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Chinese (zh)
Inventor
刘勇
介雷
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Das Solar Co Ltd
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H01L31/0481—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The application provides a light flexible assembly, an installation method thereof and a photovoltaic building, wherein the light flexible assembly comprises: the flexible layer, the first glue film, the battery piece, the second glue film and the backplate that arrange in proper order, wherein the flexible layer is fluorine-containing composite material layer. Because fluorine-containing composite material has good mechanical properties, heat resistance, corrosion resistance, ultraviolet resistance, ageing resistance, and light in weight's characteristics, this application can improve flexible assembly's luminousness and weatherability through regard as the front bezel packaging layer with fluorine-containing composite material layer, and easy washing, light in weight. And the fluorine-containing composite material layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are laminated, a metal aluminum frame is not needed, the weight is greatly reduced, the composite material layer can be used for a roof which cannot bear load, and the composite material layer is good in flexibility, strong in impact resistance and high in use value.

Description

Light flexible assembly, installation method thereof and photovoltaic building
Technical Field
The application relates to the technical field of solar cells, in particular to a light flexible assembly, an installation method thereof and a photovoltaic building.
Background
At present, with the obvious problem of energy shortage, countries in the world pay more and more attention to clean and pollution-free renewable energy sources, and photovoltaic modules taking solar energy as green renewable energy sources are applied on a large scale.
In the prior art, a photovoltaic module is generally formed by laminating tempered glass and a cell, framing with aluminum, and sealing the edge with silica gel.
However, the photovoltaic module has a large weight due to the tempered glass, the aluminum frame and the like, and the photovoltaic module cannot be used for a roof which cannot bear load.
Disclosure of Invention
In view of the above, in order to solve the problem that the weight of the photovoltaic module is large, the present application provides a lightweight flexible module, an installation method thereof, and a photovoltaic building.
In order to solve the above problems, the present application discloses a lightweight flexible component including: the flexible layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are sequentially arranged; wherein,
the flexible layer is a fluorine-containing composite material layer.
Optionally, the fluorine-containing composite material layer includes the fluorine-containing plastic layer, first POE layer and the first PET layer of arranging in proper order, first PET layer with first glue film is connected.
Optionally, the fluorine-containing plastic layer is an ETFE layer.
Optionally, the fluorine-containing plastic layer is a first PVDF layer.
Optionally, the back plate includes a second PVDF layer, a second POE layer, and a first aluminum foil layer, which are arranged in sequence, and the second PVDF layer is connected to the second adhesive layer.
Optionally, the backplate is including the second PET layer, third POE layer and the second aluminium foil layer of arranging in proper order, the second PET layer with the second glue film is connected.
In another aspect, the present application further discloses a method for mounting a lightweight flexible component to a load-bearing surface, the method comprising:
cleaning the bearing surface;
adhering the light flexible assembly on the bearing surface;
and pressing the light flexible assembly on the bearing surface.
Optionally, the step of adhering the light-weight flexible assembly on the carrying surface includes:
and adhering the light flexible assembly on the bearing surface by using adhesive or an adhesive product.
Optionally, the adhesive product is a double-sided adhesive tape.
In another aspect, the present application further discloses a photovoltaic building comprising at least one of the above lightweight flexible components.
The application includes the following advantages:
the lightweight flexible component includes: the flexible layer, the first glue film, the battery piece, the second glue film and the backplate that arrange in proper order, wherein the flexible layer is fluorine-containing composite material layer. Because fluorine-containing composite material has good mechanical properties, heat resistance, corrosion resistance, ultraviolet resistance, ageing resistance, and light in weight's characteristics, this application can improve flexible assembly's luminousness and weatherability through regard as the front bezel packaging layer with fluorine-containing composite material layer, and easy washing, light in weight. And the fluorine-containing composite material layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are laminated, a metal aluminum frame is not needed, the weight is greatly reduced, the composite material layer can be used for a roof which cannot bear load, and the composite material layer is good in flexibility, strong in impact resistance and high in use value. And the light flexible assembly can be directly adhered on the bearing surface through a double-sided adhesive tape, so that the installation is convenient and the operation is simple.
Drawings
FIG. 1 is a schematic view of a laminate of a lightweight flexible component according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a lightweight flexible component according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a fluorine-containing composite material layer according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a back plate according to an embodiment of the present application;
FIG. 5 is a schematic view of another embodiment of a backplate;
FIG. 6 is a schematic view of an impact test of a lightweight flexible component according to embodiments of the present application;
FIG. 7 is a flow chart illustrating steps in a method of installing a lightweight flexible component according to an embodiment of the present application;
FIG. 8 is a schematic view of an installed lightweight flexible component according to an embodiment of the present application;
fig. 9 is a first schematic view illustrating a bonding manner of a double-sided tape according to an embodiment of the present application;
fig. 10 is a schematic view illustrating a second pasting method of the double-sided tape according to the embodiment of the application;
FIG. 11 is a flow chart of a process for manufacturing a lightweight, flexible component according to an embodiment of the present disclosure;
fig. 12 is a schematic structural view illustrating the arrangement of the battery cells in a monolithic manner in the lightweight flexible component according to the embodiment of the present application;
fig. 13 is a schematic structural view illustrating a half-way arrangement of battery cells in a lightweight flexible component according to an embodiment of the present disclosure;
fig. 14 is a schematic structural view illustrating a stacked arrangement of battery cells in a lightweight flexible component according to an embodiment of the present disclosure;
FIG. 15 is a schematic view of a light weight flexible assembly according to an embodiment of the present disclosure, in which the battery cells are arranged in a tiled manner;
fig. 16 is a circuit diagram of the cells in the lightweight flexible component according to the embodiment of the present application arranged in a monolithic manner;
fig. 17 is a circuit diagram of a half-way arrangement of cells in a lightweight flexible component according to an embodiment of the present disclosure;
fig. 18 is a circuit diagram of a light weight flexible assembly according to an embodiment of the present application in which cells are stacked.
Description of reference numerals:
1-light flexible component, 10-flexible layer, 101-fluorine-containing plastic layer, 102-first POE layer, 103-first PET layer, 20-first adhesive layer, 30-battery piece, 40-second adhesive layer, 50-back plate, 501-second PVDF layer, 502-second POE layer, 503-first aluminum foil layer, 504-second PET layer, 505-third POE layer, 506-second aluminum foil layer, 2-heavy object, 3-bearing surface and 4-double faced adhesive tape.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
The embodiment of the application provides a light flexible assembly to on some unable roofing of bearing or the bearing surface that has certain crookedness, can install solar PV modules, reach the purpose of the green energy of make full use of. Referring to fig. 1, a schematic structural view of a laminate of a lightweight flexible component of an embodiment of the present application is shown, and referring to fig. 2, a schematic structural view of a lightweight flexible component of an embodiment of the present application is shown. As shown in fig. 1 and 2, the lightweight flexible component 1 includes: the flexible layer 10, the first glue layer 20, the battery piece 30, the second glue layer 40 and the back plate 50 are sequentially arranged, wherein the flexible layer 10 is a fluorine-containing composite material layer. Because fluorine-containing composite material has good mechanical properties, heat resistance, corrosion resistance, ultraviolet resistance, ageing resistance, and light in weight's characteristics, this application can improve flexible assembly's luminousness and weatherability through regard as the front bezel packaging layer with fluorine-containing composite material layer, and easy washing, light in weight. And the fluorine-containing composite material layer is formed by laminating the first adhesive layer 20, the battery piece 30, the second adhesive layer 40 and the back plate 50, a metal aluminum frame is not needed, the weight is greatly reduced, and the fluorine-containing composite material layer can be used for a roof which cannot bear load. And the fluorine-containing composite material layer is light in weight and better in flexibility than glass, so that the flexibility of the light flexible component 1 provided by the application is improved, the light flexible component can be used in some use scenes with requirements on bending degree, and the use range of the component is enlarged.
In practical applications, there may be a plurality of battery plates 30, wherein a plurality of battery plates 30 are connected in series and in parallel to form a battery string.
Referring to fig. 3, a schematic structural diagram of a fluorine-containing composite material layer according to an embodiment of the present application is shown. As shown in fig. 3, the fluorine-containing composite material layer includes a fluorine-containing plastic layer 101, a first POE layer (Polyolefin elastomer) 102, and a first PET layer (Polyethylene terephthalate) 103, which are sequentially arranged, and the first PET layer 103 is connected to the first adhesive layer 20. The fluorine-containing plastic contains fluorine atoms in the molecular structure, has excellent electrical insulation performance, high heat resistance and outstanding corrosion resistance and ageing resistance, and can be used on the front plate to well protect the battery piece 30. The middle first POE layer 102 is encapsulated as a toughening agent, has high water resistance, has a water permeability of only 1/10 of EVA (ethylene-vinyl acetate copolymer), and has better stability due to the non-acidic molecular chain. The first PET layer 103 has good mechanical property and folding endurance, and can improve the folding endurance and better flexibility when the light flexible component 1 is bent. And the composite material is lighter than glass, so that the weight of the light flexible component 1 can be greatly reduced. The utility model provides a light flexible assembly 1 bonds fluorine-containing plastic layer 101 and first PET layer 103 through first POE layer 102 and forms flexible layer 10, has not only reduced weight, has fine anti-oxidation and insulating properties of corrosion resistant, and the flexibility has also obtained the improvement moreover, and the light flexible assembly 1 of being convenient for uses in more places, for example, the roofing that can't bear the weight of, or has the place of certain camber demand. The battery piece 30 can be protected while the battery piece 30 is packaged, and the corrosion resistance, ageing resistance and bending resistance of the battery piece 30 are improved.
In the embodiment of the present application, the fluoroplastic layer 101 is an ETFE layer (Ethylene Tetra Fluoro Ethylene, Ethylene-tetrafluoroethylene copolymer), wherein ETFE is the toughest fluoroplastic, and has good heat resistance, chemical resistance and electrical insulation properties, and when the fluoroplastic layer is used at a temperature of 80-220 ℃ for a long time, the fluoroplastic layer still has excellent chemical corrosion resistance and good electrical properties, and the electrical insulation properties are not affected by temperature. The flexible subassembly 1 of light of this application embodiment bonds ETFE layer and first PET layer 103 through first POE layer 102 and forms flexible layer 10, has not only reduced weight, has fine anti-oxidation and insulating properties of corrosion resistant, and the flexibility has also obtained improving moreover, and the flexible subassembly 1 of light of being convenient for uses in more places, for example, the roofing that can't bear the weight of, or has the place of certain camber demand.
In another embodiment of the present application, the fluoroplastic layer 101 is a first PVDF layer (Polyvinylidene fluoride), wherein PVDF is a fluoroplastic having good corrosion resistance, high temperature resistance, oxidation resistance and radiation resistance, and is used in the front plate to reduce the weight of the lightweight flexible component 1 and improve the corrosion resistance and aging resistance. The middle first POE layer 102 is used as a toughening agent to bond the first PVDF layer and the first PET layer 103 to form the flexible layer 10, so that the weight is reduced, the corrosion resistance, oxidation resistance and insulation performance are good, the flexibility is improved, and the light flexible component 1 can be conveniently applied to more places, such as a roof which cannot bear the weight, or places with certain bending requirements.
Referring to fig. 4, a schematic structural diagram of a back plate according to an embodiment of the present application is shown. As shown in fig. 4, in this embodiment of the application, the back plate 50 includes a second PVDF layer 501, a second POE layer 502, and a first aluminum foil layer 503, which are sequentially arranged, and the second PVDF layer 501 is connected to the second adhesive layer 40. Since PVDF has good corrosion resistance, high temperature resistance, oxidation resistance and radiation resistance, PVDF is used in the backplane packaging material, which improves corrosion resistance and aging resistance while reducing the weight of the light flexible component 1, and the first aluminum foil layer 503 has good thermal conductivity and strength. The backplate 50 that this application embodiment provided bonds second PVDF layer 501 and first aluminium foil layer 503 through second POE layer 502 as the toughening agent and forms, when increasing the heat conductivity, can increase the intensity of whole light flexible component 1, increase of service life.
In practical application, the second PVDF layer 501 may be replaced by an ETFE layer, and may also have the effects of corrosion resistance, aging resistance, and weight reduction. The cost of the ETFE layer is simply higher relative to the second PVDF layer 501. The first aluminum foil layer 503 may be replaced by a fiberglass layer, which also increases the strength of the lightweight flexible component 1.
Referring to fig. 5, another structural schematic diagram of the back plate according to the embodiment of the present application is shown. As shown in fig. 5, in this embodiment of the application, the back plate 50 includes a second PET layer 504, a third POE layer 505, and a second aluminum foil layer 506, which are sequentially arranged, and the second PET layer 504 is connected to the second adhesive layer 40. Because PET has good mechanical properties, and the folding endurance is good, when taking place to buckle light flexible component 1, can improve its folding endurance, and the flexibility is better. The use of PET in the back sheet packaging material improves the folding endurance while reducing the weight of the lightweight flexible component 1. While the second aluminum foil layer 506 has good thermal conductivity and strength. The backplate 50 that this application embodiment provided bonds second PET layer 504 and second aluminium foil layer 506 through third POE layer 505 as the toughening agent and forms, when increasing the heat conductivity, can increase whole light flexible component 1's intensity and folding endurance, increase of service life.
In practical applications, the back plate 50 may also be formed by laminating other combination methods, for example, a PET layer and a glass fiber layer bonded by a POE layer, and the main combination method of the back plate 50 is not particularly limited in the present invention, as long as the weight reduction can be achieved and the sufficient strength requirement can be satisfied.
Referring to fig. 6, a schematic view of an impact test of a lightweight flexible component according to an embodiment of the present application is shown. In fig. 6, the weight 2 is dropped onto the light flexible assembly 1 installed on the bearing surface 3 from the position with the height h, and table 1 lists the average power loss at different times of testing, and it can be seen from table 1 that after multiple times of impact resistance tests, the average power loss of the light flexible assembly 1 is less than 5%, and the IEC requirements are met. That is to say, the light flexible assembly that this application embodiment provided is not only light in weight, and shock resistance is strong.
TABLE 1
Figure BDA0002574109940000071
In summary, the light flexible assembly according to the embodiment of the present application has the following advantages:
in an embodiment of the present application, a lightweight flexible component includes: the flexible layer, the first glue film, the battery piece, the second glue film and the backplate that arrange in proper order, wherein the flexible layer is fluorine-containing composite material layer. Because fluorine-containing composite material has good mechanical properties, heat resistance, corrosion resistance, ultraviolet resistance, ageing resistance, and light in weight's characteristics, this application can improve flexible assembly's luminousness and weatherability through regard as the front bezel packaging layer with fluorine-containing composite material layer, and easy washing, light in weight. And the fluorine-containing composite material layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are laminated, a metal aluminum frame is not needed, the weight is greatly reduced, the composite material layer can be used for a roof which cannot bear load, and the composite material layer is good in flexibility, strong in impact resistance and high in use value.
Referring to FIG. 7, a flow chart illustrating steps of a method of installing a lightweight flexible component according to an embodiment of the present application is shown; referring to fig. 8, a schematic structural diagram of the lightweight flexible component according to the embodiment of the present application after installation is shown. As shown in fig. 7-8, the present application further provides a method for installing a lightweight flexible component, which is used to install the lightweight flexible component 1 on a bearing surface 3, and the specific installation method includes the following steps:
step S210, cleaning the bearing surface.
Before the light flexible assembly 1 is installed, the bearing surface 3 needs to be cleaned, so that the subsequent installation process can be carried out smoothly. In particular, the carrying surface 3 may be washed with a cleaning solvent.
In practical applications, the bearing surface 3 may be a place such as a roof where direct sunlight is convenient, for example, the roof 3 made of color steel tiles, or other places where solar photovoltaic modules need to be installed. The embodiment of the present application does not limit the bearing surface 3 to be installed specifically.
Step S220, adhering the light flexible assembly on the bearing surface.
Because the light flexible assembly 1 that this application provided, not only light in weight, it is flexible good moreover, can make corresponding adjustment along with the shape of loading face 3 and warp, be favorable to directly pasting on loading face 3, need not the installing support, simplified operation process, easy operation.
In practical applications, the light flexible component 1 may be adhered to the carrying surface 3 by an adhesive or an adhesive product, for example, the light flexible component 1 is adhered by an adhesive product such as a double-sided adhesive, when adhering, one side of the double-sided adhesive may be adhered to the back side of the light flexible component 1, then after adjusting the position of the light flexible component 1 on the carrying surface 3, the release paper of the double-sided adhesive is torn off, and the light flexible component 1 is adhered to the carrying surface 3.
Referring to fig. 9, a first schematic diagram of a pasting manner of a double-sided tape according to an embodiment of the application is shown; referring to fig. 10, a schematic diagram of a second pasting method of the double-sided tape according to the embodiment of the application is shown. As shown in fig. 9 and 10, the double-sided adhesive tape 4 may be adhered to the back surface of the light-weight flexible component 1 in the vertical direction, or may be adhered to the back surface of the light-weight flexible component 1 in the horizontal direction, and a plurality of double-sided adhesive tapes 4 may be adhered to the back surface of one light-weight flexible component 1, and the specific number of the double-sided adhesive tapes 4 and the adhering distance may be set according to the actual size of the light-weight flexible component 1. In addition, if the bearing surface 3 is a color steel tile, the distance between the double-sided adhesive tapes 4 needs to be adjusted according to the distance between the color steel tiles. The embodiment of the present application does not limit this. In addition, the size of the lightweight flexible component 1 is also determined by the actually required power, and the application is not particularly limited.
Step S230, pressing the light flexible assembly on the bearing surface.
After the light flexible component 1 is adhered on the bearing surface 3, the light flexible component 1 needs to be pressed by means of a roller or the like, so that the light flexible component 1 is firmly adhered on the bearing surface 3 and waits for curing. Tests prove that according to the installation method provided by the application, the light flexible component 1 can meet the requirement of wind resistance by adhering double-faced adhesive to the standard of 12-level typhoon, wind load 850Pa and triple safety factor 2550 Pa.
According to the installation method of the light flexible assembly 1, the light flexible assembly 1 can be directly adhered to the bearing surface 3, an installation support is not needed for installing the light flexible assembly 1, the installation process is simplified, and the cost is saved. And the installed assembly has impact resistance and wind resistance, can meet the actual requirements, and is suitable for actual production.
Referring to fig. 11, a flow chart of a process for manufacturing a lightweight flexible component according to an embodiment of the present application is shown. As shown in fig. 11, before processing, the lightweight flexible component 1 provided in the embodiment of the present application needs to be prepared by preparing materials, and preparing materials such as a lamination template, a battery piece, a solder strip, a back plate, a junction box, and a frame according to a process flow design. After preparing the materials, the specific process flow is as follows:
slicing: slicing the battery piece according to a required battery piece pattern, and dividing the battery piece into a plurality of small pieces;
welding: welding the welding strip on the main grid line on the front surface of the battery piece, connecting and welding the battery piece and the positive electrode and the negative electrode of the battery piece together to form a battery string, and automatically typesetting; wherein, the shingle mode is connected by conductive adhesive;
laminating: adjusting the distance between the strings, welding two ends of the strings, and connecting the battery strings in series according to an electrical schematic diagram;
EL1 test: performing EL appearance inspection on the laminated piece, and enabling the unqualified laminated piece to flow to a repair production line for repair;
laminating: sending the laid laminated member into a laminating machine, vacuumizing to extract air in the assembly, heating to melt and solidify front and rear films, bonding the flexible layer 10, the first adhesive layer 20, the battery piece 30, the second adhesive layer 40 and the back plate 50 together, and automatically removing excessive residual adhesive overflowing after solidification; checking the appearance of the laminating part according to quality appearance inspection standards, picking out defective products for evaluation/degradation and downloading, and directly downloading qualified products;
installing a junction box: installing the glued wire box of the automatic glue dispenser on the component according to the process requirement; welding the assembly outgoing line bus bar and the junction box together by using an automatic welding machine; automatically pouring glue into the assembly with the wire box installed by using an automatic glue pouring machine; placing the assembly in a special area with certain temperature and humidity, and curing by using a silica gel surface layer;
IV test: testing the output power of the assembly, and pasting a corresponding nameplate and a corresponding current grade;
and (3) testing the continuity of the insulation, voltage resistance and grounding: applying a certain voltage between the component and the electrode lead, and testing the voltage resistance and the insulating strength of the component; applying certain current to two ends of the assembly to test the grounding continuity;
EL2 test: secondary detection is carried out on the EL luminescence condition and the whole appearance condition of the assembly, and defective products flow to a defective area to be selected out for evaluation degradation processing;
packaging: and respectively packaging and boxing the components according to the current grading information and the power grading information, and performing inspection and warehousing on the stacked components according to the packaging information.
The light flexible assembly processing method is simple, the quality of a product is guaranteed through testing and checking, procedures such as frames do not need to be installed, the procedures are greatly simplified, and the cost is saved.
In the actual production process, the arrangement mode of the battery pieces 30 in the welding process may be a whole piece, a half piece, a lamination and a split piece, and referring to fig. 12, a schematic structural diagram of the battery pieces in the lightweight flexible component according to the embodiment of the present application, which are arranged in a whole piece mode, is shown; referring to fig. 13, a schematic structural diagram of a light-weight flexible assembly according to an embodiment of the present disclosure is shown, in which the battery cells are arranged in a half-sheet manner; referring to fig. 14, a schematic structural diagram of a light-weight flexible assembly according to an embodiment of the present application in which cells are arranged in a lamination manner is shown; referring to fig. 15, a schematic structural diagram of the light-weight flexible assembly according to the embodiment of the present application, in which the battery pieces are arranged in a tiled manner, is shown. The half-cell technology is a technology that standard cell slices are cut into two pieces by laser, and the two pieces are connected after being cut into halves. The battery pieces of the whole assembly are divided into two groups, each group comprises 60 half pieces connected in series, and the battery pieces form a complete 120-piece assembly, so that the current passing through each main grid can be reduced to 1/2, the internal loss is reduced to 1/4 of the whole battery, and the power of the assembly is improved. The lamination is to connect the battery plates with each other in a more compact way, so that the gaps between the batteries are minimized, and even the edges are slightly overlapped, therefore more batteries can be laid in the same unit area, the light absorption area is increased, and the wattage can be increased by 10-15W. In addition, the lamination assembly almost does not need welding strips, and the cost of the welding strips is relatively saved. The splicing refers to seamless interconnection, splicing is not overlapped, and the utilization rate of the battery piece is improved.
Referring to fig. 16, a circuit diagram of the light weight flexible module according to the embodiment of the present application is shown, in which the battery pieces are arranged in a monolithic manner; referring to fig. 17, a circuit diagram of a half-way arrangement of battery cells in the lightweight flexible component according to the embodiment of the present application is shown; referring to fig. 18, a circuit diagram of the stacked arrangement of the battery cells in the lightweight flexible component according to the embodiment of the present application is shown. As shown in fig. 16-18, the monolithic circuit combines the currents of the battery cells in a full series connection manner. The half-chip circuit generally adopts a mode of first connecting in series and then connecting in parallel, so that the current is halved, namely two small components are connected in parallel. The laminated circuit adopts the mode that a plurality of laminated circuits are connected in series and then connected in parallel so as to ensure the current consistent with the whole piece. The connection mode of the pieces is consistent with that of the half pieces, and the description is omitted here.
The utility model provides a can realize the high-speed joint through the mode of connecting in series-parallel between a plurality of light flexible assembly that provide, under the great powerful condition of needs, only need connect the miniature light flexible assembly of polylith and can satisfy, replaced large-scale subassembly, improved small-size subassembly's utilization ratio, practiced thrift the cost.
In summary, the method for installing the lightweight flexible component has the following advantages:
the light flexible assembly installation method provided by the embodiment of the application can be used for directly pasting the light flexible assembly on the bearing surface without using an installation support to install the light flexible assembly, so that the installation process is simplified, and the cost is saved. And the impact resistance and the wind resistance of the mounted assembly can meet the actual requirements, and the light flexible assembly is simple in processing technology and suitable for large-scale production.
An embodiment of the present application further provides a photovoltaic building, the photovoltaic building includes: at least one of the lightweight flexible components described above. The specific structural form and the working principle of the lightweight flexible component have been described in detail in the foregoing embodiments, and are not described in detail in this application embodiment.
The photovoltaic building of this application embodiment, through the flexible subassembly of light that uses fluorine-containing composite to make, can improve flexible subassembly's luminousness and weatherability, and easy washing, light in weight. And the fluorine-containing composite material layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are laminated, a metal aluminum frame is not needed, the weight is greatly reduced, the composite material layer can be used for a roof which cannot bear load, and the composite material layer is good in flexibility and strong in impact resistance. And the roof can be installed on the roof only through the double faced adhesive tape, and the installation process is simple.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The light-weight flexible assembly, the installation method thereof and the photovoltaic building provided by the application are described in detail above, and specific examples are applied herein to explain the principle and the implementation of the application, and the description of the above examples is only used to help understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A lightweight flexible component, comprising: the flexible layer, the first adhesive layer, the battery piece, the second adhesive layer and the back plate are sequentially arranged; wherein,
the flexible layer is a fluorine-containing composite material layer.
2. The light flexible assembly of claim 1, wherein the fluorine-containing composite material layer comprises a fluorine-containing plastic layer, a first POE layer and a first PET layer which are sequentially arranged, and the first PET layer is connected with the first glue layer.
3. The lightweight flexible component of claim 2, wherein said layer of fluoroplastic is an ETFE layer.
4. The lightweight flexible component of claim 2, wherein the layer of fluoroplastic is a first layer of PVDF.
5. The lightweight flexible component according to claim 1, wherein the back plate comprises a second PVDF layer, a second POE layer and a first aluminum foil layer arranged in sequence, and the second PVDF layer is connected to the second adhesive layer.
6. The light weight flexible assembly of claim 1, wherein the back plate comprises a second PET layer, a third POE layer and a second aluminum foil layer which are sequentially arranged, and the second PET layer is connected with the second glue layer.
7. A method of installing a lightweight flexible component for use in installing a lightweight flexible component as claimed in any one of claims 1 to 6 on a load-supporting surface, the method comprising:
cleaning the bearing surface;
adhering the light flexible assembly on the bearing surface;
and pressing the light flexible assembly on the bearing surface.
8. The method of installing a lightweight flexible component as defined in claim 7, wherein said step of adhering said lightweight flexible component to said load-supporting surface comprises:
and adhering the light flexible assembly on the bearing surface by using adhesive or an adhesive product.
9. The method of installing a lightweight flexible component of claim 8, wherein said adhesive article is double sided tape.
10. A photovoltaic building comprising at least one lightweight flexible component as claimed in any one of claims 1 to 6.
CN202010648708.3A 2020-07-07 2020-07-07 Light flexible assembly, installation method thereof and photovoltaic building Pending CN113910695A (en)

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CN208674142U (en) * 2018-07-25 2019-03-29 米亚索乐装备集成（福建）有限公司 Flexible photovoltaic component
FR3081615A1 (en) * 2018-05-22 2019-11-29 Commissariat A L'energie Atomique Et Aux Energies Alternatives LIGHT AND FLEXIBLE PHOTOVOLTAIC MODULE COMPRISING A FRONT POLYMER LAYER AND A REVERSE LAYER OF COMPOSITE MATERIAL
CN110620161A (en) * 2019-09-06 2019-12-27 泰州中来光电科技有限公司 Light flexible photovoltaic module
CN110948954A (en) * 2018-09-25 2020-04-03 汉能移动能源控股集团有限公司 Front plate, thin-film solar module and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206194762U (en) * 2016-11-03 2017-05-24 新奥光伏能源有限公司 Photovoltaic assembly
CN207474483U (en) * 2017-12-12 2018-06-08 米亚索乐装备集成（福建）有限公司 Flexible photovoltaic component
FR3081615A1 (en) * 2018-05-22 2019-11-29 Commissariat A L'energie Atomique Et Aux Energies Alternatives LIGHT AND FLEXIBLE PHOTOVOLTAIC MODULE COMPRISING A FRONT POLYMER LAYER AND A REVERSE LAYER OF COMPOSITE MATERIAL
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